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Candan O, Toptas T, Demir S, Erdenen F. There is no association between serum endotoxin levels and inflammation in asthma. J Asthma 2024; 61:883-888. [PMID: 38289083 DOI: 10.1080/02770903.2024.2311233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
BACKROUND Endotoxin, in lipopolysaccharide structure (LPS), is the main component of the outer membrane of gram negative bacteria. LPS levels were associated with inflammatory disease. Asthma is a chronic inflammatory disease involving many different cell types and cellular elements. The association between LPS serum levels and the asthma is not well known. The aim of this study was to investigate the association between the LPS serum levels and the severity of asthma, demographic data and laboratory parameters. METHODOLOGY The study included 67 patients aged >18 years with a diagnosis of asthma, and 15 healthy volunteers with no history of chronic disease as a control group. The Asthma Control Test (ACT), Respiratory Function Tests (RFTs), fractional exhaled nitric oxide (FeNO), and endotoxin levels were measured and compared between the groups. The endotoxin measurements were performed using the ELISA method. RESULTS The mild-moderate asthma group included 33 patients and the severe asthma group, 34 patients. The endotoxin level was measured as 17.78 (range 3.59 to 304.55) EU/ml in the patient group and 15 (range 4.01 to 74.06) EU/ml in the control group with no statistically significant difference determined between the groups. In the subgroups, the endotoxin level was measured as 15.21 (range 3.69 to 304.55) EU/ml in the mild-moderate group and 14.46 (range 3.59 to 278.86) EU/ml in the severe asthma group with no statistically significant difference determined between the groups. CONCLUSION The results of this study showed no relationship between serum endotoxin level and asthma or asthma severity.
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Affiliation(s)
- Ozlem Candan
- Division of Hematology, Marmara Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Tayfur Toptas
- Division of Hematology, Marmara Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Semra Demir
- Department of Internal Medicine, Division of Immunology and Allergic Diseases, Istanbul University Faculty of Medicine, Istanbul, Turkey
| | - Fusun Erdenen
- Adult Allergy and Immunology Clinic, Istanbul Training and Research Hospital, Istanbul, Turkey
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2
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Bacharier LB, Pavord ID, Maspero JF, Jackson DJ, Fiocchi AG, Mao X, Jacob-Nara JA, Deniz Y, Laws E, Mannent LP, Amin N, Akinlade B, Staudinger HW, Lederer DJ, Hardin M. Blood eosinophils and fractional exhaled nitric oxide are prognostic and predictive biomarkers in childhood asthma. J Allergy Clin Immunol 2024; 154:101-110. [PMID: 38272375 DOI: 10.1016/j.jaci.2023.09.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 01/27/2024]
Abstract
BACKGROUND Blood eosinophils and fractional exhaled nitric oxide (Feno) are prognostic biomarkers for exacerbations and predict lung function responses to dupilumab in adolescents and adults with asthma. OBJECTIVE We evaluated the relationship between baseline blood eosinophils and Feno and response to dupilumab in children with asthma. METHODS Children aged 6 to 11 years with uncontrolled moderate-to-severe asthma (n = 408) were randomized to receive dupilumab 100/200 mg by body weight or volume-matched placebo every 2 weeks for 52 weeks. Annualized exacerbation rate (AER) reduction and least squares mean change in prebronchodilator percent predicted forced expiratory volume in 1 second (ppFEV1) at week 12 were assessed according to cutoff baseline levels for Feno (<20 ppb vs ≥20 ppb) and blood eosinophil count (<150, ≥150 to <300, ≥300 to <500, and ≥500 cells/μL). Quadrant analyses in populations defined by biomarker thresholds and spline models across continuous end points assessed the relationship with Feno and eosinophil count. Interaction testing evaluated the independent roles of Feno and blood eosinophils as predictive markers. RESULTS Exacerbation risk and magnitude of AER reduction increased in subgroups with higher baseline biomarker levels. Quadrant analyses revealed that disease of patients with either elevated Feno or eosinophil counts demonstrated a clinical response to dupilumab. Interaction testing indicated blood eosinophil counts or Feno independently added value as predictive biomarkers. CONCLUSIONS In children with uncontrolled moderate-to-severe asthma, blood eosinophil counts and Feno are clinically relevant biomarkers to identify those at risk for asthma exacerbations, as well as those with disease with clinical response to dupilumab. TRIAL REGISTRATION Liberty Asthma VOYAGE ClinicalTrials.gov NCT02948959.
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Affiliation(s)
- Leonard B Bacharier
- Monroe Carell Jr Children's Hospital at Vanderbilt University Medical Center, Nashville, Tenn.
| | - Ian D Pavord
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | | | - Daniel J Jackson
- University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | | | | | | | - Yamo Deniz
- Regeneron Pharmaceuticals Inc, Tarrytown, NY
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Mahmood L, Keskin S, Jefferson AA. Precision care in the treatment of pediatric asthma. Curr Opin Pediatr 2024; 36:304-309. [PMID: 38411592 PMCID: PMC11042999 DOI: 10.1097/mop.0000000000001343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
PURPOSE OF REVIEW Precision medicine in pediatric asthma involves identification of asthma phenotypes, genetic markers, biomarkers, and biologics that target specific pathways. This review includes a discussion of the efficacy of currently approved biologics for pediatric asthma and most recent advances in biomarker/phenotype identification and genetic associations that affect asthma care. RECENT FINDINGS Biologics targeting type-2 mediated pathways have shown success in the treatment of moderate to severe asthma in pediatric and adult patients. In comparative studies, dupilumab, an interleukin-4 (IL-4) alpha receptor inhibitor, and mepolizumab, an IL-5 inhibitor, have shown more improvement in asthma exacerbation rates and lung function compared to other biologics such as tezepelumab, omalizumab and benralizumab. Other methods used to categorize asthma treatment response have been investigated and include use of biomarkers such as fractional exhaled nitric oxide (FeNO). Genomic studies are also emerging in precision care for pediatric asthma. SUMMARY An understanding of underlying immunologic and genetic mechanisms affecting the development of asthma in pediatric patients has resulted in the production of numerous targeted therapies that have led to improvement in lung function and reduced exacerbation burden.
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Affiliation(s)
- Lina Mahmood
- University of Arkansas for Medical Sciences and Arkansas Children’s Hospital, Department of Pediatric Allergy and Immunology, Little Rock, Arkansas
| | - Sevdenur Keskin
- University of Arkansas for Medical Sciences and Arkansas Children’s Hospital, Department of Pediatric Allergy and Immunology, Little Rock, Arkansas
| | - Akilah A. Jefferson
- University of Arkansas for Medical Sciences and Arkansas Children’s Hospital, Department of Pediatric Allergy and Immunology, Little Rock, Arkansas
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4
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O’Farrell HE, Kok HC, Goel S, Chang AB, Yerkovich ST. Endotypes of Paediatric Cough-Do They Exist and Finding New Techniques to Improve Clinical Outcomes. J Clin Med 2024; 13:756. [PMID: 38337450 PMCID: PMC10856076 DOI: 10.3390/jcm13030756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Chronic cough is a common symptom of many childhood lung conditions. Given the phenotypic heterogeneity of chronic cough, better characterization through endotyping is required to provide diagnostic certainty, precision therapies and to identify pathobiological mechanisms. This review summarizes recent endotype discoveries in airway diseases, particularly in relation to children, and describes the multi-omic approaches that are required to define endotypes. Potential biospecimens that may contribute to endotype and biomarker discoveries are also discussed. Identifying endotypes of chronic cough can likely provide personalized medicine and contribute to improved clinical outcomes for children.
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Affiliation(s)
- Hannah E. O’Farrell
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT 0810, Australia; (H.C.K.); (A.B.C.); (S.T.Y.)
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, QLD 4000, Australia;
| | - Hing Cheong Kok
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT 0810, Australia; (H.C.K.); (A.B.C.); (S.T.Y.)
- Department of Paediatrics, Sabah Women and Children’s Hospital, Kota Kinabalu 88996, Sabah, Malaysia
| | - Suhani Goel
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, QLD 4000, Australia;
| | - Anne B. Chang
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT 0810, Australia; (H.C.K.); (A.B.C.); (S.T.Y.)
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, QLD 4000, Australia;
- Department of Respiratory and Sleep Medicine, Queensland Children’s Hospital, Brisbane, QLD 4101, Australia
| | - Stephanie T. Yerkovich
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT 0810, Australia; (H.C.K.); (A.B.C.); (S.T.Y.)
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, QLD 4000, Australia;
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Yilmaz O, Tunca S, Yasar A, Ocalan M, Taneli F, Yuksel H. Inflammatory markers in exhaled breath condensate in nonasthmatic children with food allergy. J Breath Res 2023; 18:016005. [PMID: 37827149 DOI: 10.1088/1752-7163/ad02b5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/12/2023] [Indexed: 10/14/2023]
Abstract
Allergy is a systemic inflammation; therefore, although the allergic symptom may be seen in a specific organ system, the effects of this inflammation may be seen in other organs. interleukin (IL) IL4, IL5 and IL13 are the major Th2 cytokines and e-cadherin is an epithelial barrier protein. The objective of this research was to assess indicators of inflammation specific to Th2 responses and proteins related to the protective barrier of the airway's inner lining. These assessments were conducted using exhaled breath condensate (EBC), which provides insights into peripheral airway conditions of children suffering from food allergies. The study had 24 patients with food allergy and 24 control individuals younger than three years of age with no history of food reaction. The diagnosis of food allergy was based on food allergen-specific IgE and skin prick test positivity in our clinic and oral food testing in selected cases. EBC samples were obtained by Ecoscreen (Jaegar, Hoechberg, Germany). IL4, IL5, IL13 and E-cadherin levels were measured in these samples by enzyme linked immunoassay. The group of children with food allergies, consisting mainly of 14 girls, had a median age of 16 months, whereas the control group, which included 11 girls, had a median age of 15 months (p= 0.89). Comparing the two groups, children with food allergies exhibited notably lower levels of IL-13 in the EBC compared to the control group (median values of 59.14 and 76.36, respectively,p= 0.02). Conversely, the concentration of IL-4 in the EBC was significantly higher in children with food allergies (median values of 1.94 and 1.29, respectively,p= 0.003). However, the levels of IL-5 and e-cadherin showed no significant differences between the two groups (withp-values of 0.74 and 0.09, respectively) as shown in table1. High level of IL-4 despite the low level of IL-13 in the EBC of children having food allergy may be indicative of an early inflammatory phase that is not yet in the effector phase. Studies about the evolution of this process later in life are needed to assess the role of airway inflammation in children with food allergy who develop asthma.
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Affiliation(s)
- Ozge Yilmaz
- Faculty of Medicine; Department Pediatric Allergy and Immunology, Celal Bayar University, Manisa, Turkey
| | - Seda Tunca
- Faculty of Medicine; Department Pediatric Allergy and Immunology, Celal Bayar University, Manisa, Turkey
| | - Adem Yasar
- Faculty of Medicine; Department Pediatric Allergy and Immunology, Celal Bayar University, Manisa, Turkey
| | - Merve Ocalan
- Faculty of Medicine; Department Pediatric Allergy and Immunology, Celal Bayar University, Manisa, Turkey
| | - Fatma Taneli
- Faculty of Medicine; Department of Biochemistry, Celal Bayar University, Manisa, Turkey
| | - Hasan Yuksel
- Faculty of Medicine; Department Pediatric Allergy and Immunology, Celal Bayar University, Manisa, Turkey
- Faculty of Medicine; Department of Pediatric Pulmonology, Celal Bayar University, Manisa, Turkey
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Seyfinejad B, Nemutlu E, Taghizadieh A, Khoubnasabjafari M, Ozkan SA, Jouyban A. Biomarkers in exhaled breath condensate as fingerprints of asthma, chronic obstructive pulmonary disease and asthma-chronic obstructive pulmonary disease overlap: a critical review. Biomark Med 2023; 17:811-837. [PMID: 38179966 DOI: 10.2217/bmm-2023-0420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024] Open
Abstract
Asthma, chronic obstructive pulmonary disease (COPD) and asthma-COPD overlap are the third leading cause of mortality around the world. They share some common features, which can lead to misdiagnosis. To properly manage these conditions, reliable markers for early and accurate diagnosis are needed. Over the past 20 years, many molecules have been investigated in the exhaled breath condensate to better understand inflammation pathways and mechanisms related to these disorders. Recently, more advanced techniques, such as sensitive metabolomic and proteomic profiling, have been used to obtain a more comprehensive understanding. This article reviews the use of targeted and untargeted metabolomic methodology to study asthma, COPD and asthma-COPD overlap.
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Affiliation(s)
- Behrouz Seyfinejad
- Pharmaceutical Analysis Research Center & Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Emirhan Nemutlu
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, 06100, Turkiye
| | - Ali Taghizadieh
- Tuberculosis & Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Internal Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Khoubnasabjafari
- Tuberculosis & Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Anesthesiology & Intensive Care, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sibel A Ozkan
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, 06560, Turkiye
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center & Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Pharmacy, Near East University, PO Box 99138 Nicosia, North Cyprus, Mersin 10, Turkiye
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Davis MD, Zein JG, Carraro S, Gaston B. Defining and Promoting Pediatric Pulmonary Health: Developing Biomarkers for Pulmonary Health. Pediatrics 2023; 152:e2023062292C. [PMID: 37656025 PMCID: PMC10484306 DOI: 10.1542/peds.2023-062292c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/16/2023] [Indexed: 09/02/2023] Open
Abstract
Children with inherited and/or acquired respiratory disorders often arrive in adolescence and adulthood with diminished lung function that might have been detected and prevented had better mechanisms been available to identify and to assess progression of disease. Fortunately, advances in genetic assessments, low-cost diagnostics, and minimally- invasive novel biomarkers are being developed to detect and to treat respiratory diseases before they give rise to loss of life or lung function. This paper summarizes the Developing Biomarkers for Pulmonary Health sessions of the National Heart, Lung, and Blood Institute- sponsored 2021 Defining and Promoting Pediatric Pulmonary Health workshop. These sessions discussed genetic testing, pulse oximetry, exhaled nitric oxide, and novel biomarkers related to childhood lung diseases.
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Affiliation(s)
- Michael D. Davis
- Wells Center for Pediatric Research and Division of Pulmonology, Allergy, and Sleep Medicine, Riley Hospital for Children at Indiana University, Indianapolis, Indiana
| | - Joe G. Zein
- Department of Pulmonary Medicine, Respiratory Institute and Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Silvia Carraro
- Unit of Pediatric Allergy and Respiratory Medicine, Women’s and Children’s Health Department, University of Padova, Padova, Italy
| | - Benjamin Gaston
- Wells Center for Pediatric Research and Division of Pulmonology, Allergy, and Sleep Medicine, Riley Hospital for Children at Indiana University, Indianapolis, Indiana
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Weber R, Streckenbach B, Welti L, Inci D, Kohler M, Perkins N, Zenobi R, Micic S, Moeller A. Online breath analysis with SESI/HRMS for metabolic signatures in children with allergic asthma. Front Mol Biosci 2023; 10:1154536. [PMID: 37065443 PMCID: PMC10102578 DOI: 10.3389/fmolb.2023.1154536] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/16/2023] [Indexed: 04/03/2023] Open
Abstract
Introduction: There is a need to improve the diagnosis and management of pediatric asthma. Breath analysis aims to address this by non-invasively assessing altered metabolism and disease-associated processes. Our goal was to identify exhaled metabolic signatures that distinguish children with allergic asthma from healthy controls using secondary electrospray ionization high-resolution mass spectrometry (SESI/HRMS) in a cross-sectional observational study. Methods: Breath analysis was performed with SESI/HRMS. Significant differentially expressed mass-to-charge features in breath were extracted using the empirical Bayes moderated t-statistics test. Corresponding molecules were putatively annotated by tandem mass spectrometry database matching and pathway analysis. Results: 48 allergic asthmatics and 56 healthy controls were included in the study. Among 375 significant mass-to-charge features, 134 were putatively identified. Many of these could be grouped to metabolites of common pathways or chemical families. We found several pathways that are well-represented by the significant metabolites, for example, lysine degradation elevated and two arginine pathways downregulated in the asthmatic group. Assessing the ability of breath profiles to classify samples as asthmatic or healthy with supervised machine learning in a 10 times repeated 10-fold cross-validation revealed an area under the receiver operating characteristic curve of 0.83. Discussion: For the first time, a large number of breath-derived metabolites that discriminate children with allergic asthma from healthy controls were identified by online breath analysis. Many are linked to well-described metabolic pathways and chemical families involved in pathophysiological processes of asthma. Furthermore, a subset of these volatile organic compounds showed high potential for clinical diagnostic applications.
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Affiliation(s)
- Ronja Weber
- Department of Respiratory Medicine, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Bettina Streckenbach
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Lara Welti
- Department of Respiratory Medicine, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Demet Inci
- Department of Respiratory Medicine, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Malcolm Kohler
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
| | - Nathan Perkins
- Division of Clinical Chemistry and Biochemistry, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Srdjan Micic
- Department of Respiratory Medicine, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Alexander Moeller
- Department of Respiratory Medicine, University Children’s Hospital Zurich, Zurich, Switzerland
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9
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Akhmerova YN, Shpakova TA, Grammatikati KS, Mitrofanov SI, Kazakova PG, Mkrtchian AA, Zemsky PU, Pilipenko MN, Feliz NV, Frolova LV, Frolovskaya AA, Yudin VS, Keskinov AA, Kraevoy SA, Yudin SM, Skvortsova VI. Genetic Variants Associated with Bronchial Asthma Specific to the Population of the Russian Federation. Acta Naturae 2023; 15:31-41. [PMID: 37153512 PMCID: PMC10154776 DOI: 10.32607/actanaturae.11853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/09/2023] [Indexed: 05/09/2023] Open
Abstract
Bronchial asthma (BA) is a disease that still lacks an exhaustive treatment protocol. In this regard, the global medical community pays special attention to the genetic prerequisites for the occurrence of this disease. Therefore, the search for the genetic polymorphisms underlying bronchial asthma has expanded considerably. As the present study progressed, a significant amount of scientific medical literature was analyzed and 167 genes reported to be associated with the development of bronchial asthma were identified. A group of participants (n = 7,303) who had voluntarily provided their biomaterial (venous blood) to be used in the research conducted by the Federal Medical Biological Agency of Russia was formed to subsequently perform a bioinformatic verification of known associations and search for new ones. This group of participants was divided into four cohorts, including two sex-distinct cohorts of individuals with a history of asthma and two sex-distinct cohorts of apparently healthy individuals. A search for polymorphisms was made in each cohort among the selected genes, and genetic variants were identified whose difference in occurrence in the different cohorts was statistically significant (significance level less than 0.0001). The study revealed 11 polymorphisms that affect the development of asthma: four genetic variants (rs869106717, rs1461555098, rs189649077, and rs1199362453), which are more common in men with bronchial asthma compared to apparently healthy men; five genetic variants (rs1923038536, rs181066119, rs143247175, rs140597386, and rs762042586), which are more common in women with bronchial asthma compared to apparently healthy women; and two genetic variants (rs1219244986 and rs2291651) that are rare in women with a history of asthma.
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Affiliation(s)
- Y. N. Akhmerova
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - T. A. Shpakova
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - K. S. Grammatikati
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - S. I. Mitrofanov
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - P. G. Kazakova
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - A. A. Mkrtchian
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - P. U. Zemsky
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - M. N. Pilipenko
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - N. V. Feliz
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - L. V. Frolova
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - A. A. Frolovskaya
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - V. S. Yudin
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - A. A. Keskinov
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - S. A. Kraevoy
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - S. M. Yudin
- Federal State Budgetary Institution “Center for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency (Center for Strategic Planning of FMBA of Russia), Moscow, 119121 Russian Federation
| | - V. I. Skvortsova
- Federal Medical Biological Agency (FMBA of Russia), Moscow, 123182 Russian Federation
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10
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Xepapadaki P, Adachi Y, Pozo Beltrán CF, El-Sayed ZA, Gómez RM, Hossny E, Filipovic I, Le Souef P, Morais-Almeida M, Miligkos M, Nieto A, Phipatanakul W, Pitrez PM, Wang JY, Wong GW, Papadopoulos NG. Utility of biomarkers in the diagnosis and monitoring of asthmatic children. World Allergy Organ J 2022; 16:100727. [PMID: 36601259 PMCID: PMC9791923 DOI: 10.1016/j.waojou.2022.100727] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 11/17/2022] [Accepted: 11/17/2022] [Indexed: 12/23/2022] Open
Abstract
Asthma imposes a heavy morbidity burden during childhood; it affects over 10% of children in Europe and North America and it is estimated to exceed 400 million people worldwide by the year 2025. In clinical practice, diagnosis of asthma in children is mostly based on clinical criteria; nevertheless, assessment of both physiological and pathological processes through biomarkers, support asthma diagnosis, aid monitoring, and further lead to better treatment outcomes and reduced morbidity. Recently, identification and validation of biomarkers in pediatric asthma has emerged as a top priority across leading experts, researchers, and clinicians. Moreover, the implementation of non-invasive biomarkers for the assessment and monitoring of paediatric patients with asthma, has been prioritized; however, only a proportion of them are currently included in the clinical practise. Although, the use of non-invasive biomarkers is highly supported in recent asthma guidelines for documenting diagnosis and supporting monitoring of asthmatic patients, data on the Pediatric population are limited. In the present report, the Pediatric Asthma Committee of the World Allergy Organization (WAO), aims to summarize and discuss available data for the implementation of non-invasive biomarkers in the diagnosis and monitoring in children with asthma. Information on the most studied biomarkers, including spirometry, oscillometry, markers of allergic sensitization, fractional exhaled nitric oxide, and the most recent exhaled breath markers and "omic" approaches, will be reviewed. Practical limitations and considerations based on both experts' opinion and critical review of the literature, on the utility of all "well-known" and newly introduced non-invasive biomarkers will be presented. A critical commentary on biomarkers' use in diagnosing and monitoring asthma during the COVID-19 pandemic, cost and availability of biomarkers in different settings and in developing countries, the differences on the biomarkers use between Primary Practitioners, Pediatricians, and Specialists and their role on the longitudinal aspect of asthma is provided.
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Affiliation(s)
- Paraskevi Xepapadaki
- Allergy Department, 2nd Pediatric Clinic, University of Athens, Athens, Greece
- Corresponding author.
| | - Yuichi Adachi
- Department of Pediatrics, Faculty of Medicine, University of Toyam, Japan
| | | | - Zeinab A. El-Sayed
- Pediatric Allergy, Immunology and Rheumatology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | | | - Elham Hossny
- Pediatric Allergy, Immunology and Rheumatology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | - Ivana Filipovic
- University Hospital Center Dr Dragiša Mišović Hospital Pediatric Department, Serbia
| | - Peter Le Souef
- Faculty of Health and Medical Sciences, Dept of Respiratory Medicine, Child and Adolescent Health Service, University of Western Australia, Perth, Australia
| | | | - Michael Miligkos
- Allergy Department, 2nd Pediatric Clinic, University of Athens, Athens, Greece
| | - Antonio Nieto
- Pediatric Pulmonology & Allergy Unit Children's. Health Research Institute. Hospital La Fe, 46026, Valencia, Spain
| | - Wanda Phipatanakul
- Pediatric Allergy and Immunology, Boston Children's Hospital, Boston, MA, USA
| | - Paulo M. Pitrez
- School of Medicine, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Jiu-Yao Wang
- Center for Allergy and Clinical Immunology Research, College of Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Gary W.K. Wong
- Department of Paediatrics, The Chinese University of Hong Kong, China
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11
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Swinarew AS, Flak T, Jarosińska A, Garczyk Ż, Gabor J, Skoczyński S, Brożek G, Paluch J, Popczyk M, Stanula A, Stach S. Polyurethane-Based Porous Carbons Suitable for Medical Application. MATERIALS 2022; 15:ma15093313. [PMID: 35591653 PMCID: PMC9101738 DOI: 10.3390/ma15093313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/19/2022] [Accepted: 04/29/2022] [Indexed: 11/24/2022]
Abstract
The main aim of the study was to synthesize and analyze spectral data to determine the structure and stereometry of the carbon-based porous material internal structure. Samples of a porous biomaterial were synthesized through anionic polymerization following our own patent and then carbonized. The samples were investigated using MALDI ToF MS, FTIR ATR spectroscopy, optic microscopy, SEM, confocal laser scanning microscopy and CMT imaging. The analysis revealed the chemical and stereological structure of the obtained porous biomaterial. Then, the parameters characterizing the pore geometry and the porosity of the samples were calculated. The developed material can be used to collect adsorption of breathing phase samples to determine the parity composition of exhaled air.
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Affiliation(s)
- Andrzej S. Swinarew
- Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland; (T.F.); (Ż.G.); (J.G.); (M.P.); (S.S.)
- Institute of Sport Science, The Jerzy Kukuczka Academy of Physical Education, Mikołowska 72A, 40-065 Katowice, Poland;
- Correspondence:
| | - Tomasz Flak
- Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland; (T.F.); (Ż.G.); (J.G.); (M.P.); (S.S.)
| | - Agnieszka Jarosińska
- Department of Internal Medicine, Autoimmune and Metabolic Diseases, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Medyków 14, 40-572 Katowice, Poland;
| | - Żaneta Garczyk
- Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland; (T.F.); (Ż.G.); (J.G.); (M.P.); (S.S.)
| | - Jadwiga Gabor
- Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland; (T.F.); (Ż.G.); (J.G.); (M.P.); (S.S.)
| | - Szymon Skoczyński
- Department of Pneumonology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-055 Katowice, Poland;
| | - Grzegorz Brożek
- Department of Epidemiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Medyków 18, 40-752 Katowice, Poland;
| | - Jarosław Paluch
- Department of Laryngology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, ul. Francuska 20-24, 40-027 Katowice, Poland;
| | - Magdalena Popczyk
- Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland; (T.F.); (Ż.G.); (J.G.); (M.P.); (S.S.)
| | - Arkadiusz Stanula
- Institute of Sport Science, The Jerzy Kukuczka Academy of Physical Education, Mikołowska 72A, 40-065 Katowice, Poland;
| | - Sebastian Stach
- Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland; (T.F.); (Ż.G.); (J.G.); (M.P.); (S.S.)
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12
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Bhavra K, Wilde M, Richardson M, Cordell R, Thomas CLP, Zhao B, Bryant L, Brightling CE, Ibrahim W, Salman D, Siddiqui S, Monks P, Gaillard E. The utility of a standardised breath sampler in school age children within a real-world prospective study. J Breath Res 2022; 16. [PMID: 35168217 DOI: 10.1088/1752-7163/ac5526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 02/15/2022] [Indexed: 11/12/2022]
Abstract
Clinical assessment of paediatric asthmatics is problematic, and non-invasive biomarkers are needed urgently. Monitoring exhaled volatile organic compounds (VOCs) is an attractive alternative to invasive tests (blood and sputum), and may be used as frequently as required. Standardised reproducible breath-sampling is essential for exhaled-VOC analysis, and although the ReCIVA (Owlstone Medical Limited) breath-sampler was designed to satisfy this requirement, paediatric use was not in the original design brief. The efficacy of the ReCIVA for sampling paediatric-breath has been studied, and 90 breath-samples from 64 children (5-15 years) with, and without asthma (controls), were collected with two different ReCIVA units. Seventy samples (77.8%) contained the specified 1L of sampled-breath. Median sampling times were longer in children with acute asthma (770.2 s, range: 532.2-900.1 s) compared to stable asthma (690.6 s, range: 477.5-900.1 s; p=0.01). The ReCIVA successfully detected operational faults, in 21 samples. A leak, caused by a poor fit of the face mask seal was the most common (15); the others were USB communication-faults (5); and, a single instance of a file-creation error. Paediatric breath-profiles were reliably monitored, however synchronisation of sampling to breathing-phases was sometimes lost, causing some breaths not to be sampled, and some to be sampled continuously. This occurred in 60 (66.7%) of the samples and was a source of variability. Three samples were lost from a combination of factors, however, and importantly, multi-variate modelling of untargeted VOC analysis indicated the absence of significant batch effects for 8 operational variables. The ReCIVA appears suitable for paediatric breath-sampling. Post-processing of breath-sample meta-data is recommended to assess the quality of sample-acquisition. Further, future studies should explore the effect of pump-synchronisation faults on recovered VOC profiles, and mask sizes to fit all ages will reduce the potential for leaks and importantly, provide higher levels of comfort to children with asthma.
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Affiliation(s)
- Kirandeep Bhavra
- Department of Respiratory Sciences, Leicester Royal Infirmary, NIHR Leicester Biomedical Research Centre (Respiratory theme), PO Box 65, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Michael Wilde
- University of Leicester, Department of Chemistry, Leicester, Leicestershire, LE1 7RH, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Matthew Richardson
- Loughborough University School of Science, Department of Chemistry, Loughborough, Leicestershire, LE11 3TU, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Rebecca Cordell
- University of Leicester Department of Chemistry, University of Leicester, Leicester, Leicester, LE1 7RH, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - C L Paul Thomas
- University of Leicester Department of Respiratory Sciences, NIHR Leicester Biomedical Research Centre (Respiratory theme), Glenfield Hospital, Groby Road, Leicester, East Midlands, LE3 9QP, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Bo Zhao
- University of Leicester College of Life Sciences, Leicester NIHR Biomedical Research Centre (Respiratory theme), Glenfield Hospital, Groby Road, Leicester, Leicester, LE3 9QP, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Luke Bryant
- University of Leicester Department of Chemistry, University of Leicester, University Road, Leicester, Leicester, LE1 7RH, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Christopher E Brightling
- Loughborough University School of Science, Department of Chemistry, Loughborough, Leicestershire, LE11 3TU, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Wadah Ibrahim
- Loughborough University School of Science, Department of Chemistry, Loughborough, Leicestershire, LE11 3TU, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Dahlia Salman
- University of Leicester Department of Respiratory Sciences, NIHR Leicester Biomedical Research Centre (Respiratory theme),, Glenfield Hospital, Groby Road, Leicester, East Midlands, LE3 9QP, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Salman Siddiqui
- Loughborough University School of Science, Department of Chemistry, Loughborough, Leicestershire, LE11 3TU, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Paul Monks
- University of Leicester, Department of Chemistry, Leicester, Leicestershire, LE1 7RH, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Erol Gaillard
- Department of Respiratory Sciences, University of Leicester, College of Life Sciences, Leicester, Leicestershire, LE1 7RH, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
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13
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李 芮, 董 晓, 蒋 鲲, 王 超, 孙 超, 袁 浪, 董 娜. Application of fractional exhaled nitric oxide and nasal nitric oxide in control evaluation of bronchial asthma and diagnosis of allergic rhinitis in children. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2022; 24:90-95. [PMID: 35177182 PMCID: PMC8802386 DOI: 10.7499/j.issn.1008-8830.2108091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES To study the association of fractional exhaled nitric oxide (FeNO) and nasal nitric oxide (nNO) with asthma control and their value in the diagnosis of allergic rhinitis in children. METHODS A total of 186 children aged 5-12 years, who attended the outpatient service of the Department of Respiration, Shanghai Children's Hospital due to bronchial asthma and/or allergic rhinitis or who underwent physical examination, were enrolled as subjects, with 52 children in the asthma group, 60 children in the asthma+allergic rhinitis group, 36 children in the allergic rhinitis group, and 38 children in the control group. FeNO, nNO, and pulmonary function were compared between groups. RESULTS The asthma+allergic rhinitis, asthma, and allergic rhinitis groups had a significantly higher level of FeNO than the control group (P<0.05). The asthma+allergic rhinitis and allergic rhinitis groups had a significantly higher level of nNO than the asthma and control groups (P<0.05). The uncontrolled asthma and partially controlled asthma groups had significantly higher levels of FeNO and nNO than the completely controlled asthma group (P<0.05). The receiver operating characteristic (ROC) curve analysis showed that nNO had an area under the ROC curve of 0.91, with a sensitivity of 80.0% and a specificity of 89.5% in the diagnosis of allergic rhinitis in children with asthma (P<0.05). CONCLUSIONS The combined measurement of nNO and FeNO can be used to evaluate the control of asthma, and the measurement of nNO can help with the diagnosis of allergic rhinitis in children with bronchial asthma.
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14
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Seifi M, Rastkari N, Hassanvand MS, Naddafi K, Nabizadeh R, Nazmara S, Kashani H, Zare A, Pourpak Z, Hashemi SY, Yunesian M. Investigating the relationship between particulate matter and inflammatory biomarkers of exhaled breath condensate and blood in healthy young adults. Sci Rep 2021; 11:12922. [PMID: 34155256 PMCID: PMC8217428 DOI: 10.1038/s41598-021-92333-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/08/2021] [Indexed: 12/15/2022] Open
Abstract
Inflammatory biomarkers in exhaled breath condensate (EBC) are measured to estimate the effects of air pollution on humans. The present study was conducted to investigate the relationship between particulate matter and inflammatory biomarkers in blood plasma and exhaled air in young adults. The obtained results were compared in two periods; i.e., winter and summer. GRIMM Dust Monitors were used to measure PM10, PM2.5, and PM1 in indoor and outdoor air. A total of 40 healthy young adults exhaling air condensate were collected. Then, biomarkers of interleukin-6 (IL-6), Nitrosothiols (RS-NOs), and Tumor necrosis factor-soluble receptor-II (sTNFRII) were measured by 96 wells method ELISA and commercial kits (HS600B R&D Kit and ALX-850–037-KI01) in EBC while interleukin-6 (IL-6), sTNFRII and White Blood Cell (WBC) were measured in blood plasma in two periods of February 2013 (winter) and May 2013 (summer). Significant association was found between particulate matter and the white blood cell count (p < 0.001), as well as plasma sTNFRII levels (p-value = 0.001). No significant relationship was found between particulate matter with RS-NOs (p = 0.128), EBC RSNOs (p-value = 0.128), and plasma IL-6 (p-value = 0.167). In addition, there was no significant relationship between interleukin-6 of exhaled air with interleukin-6 of plasma (p-value < 0.792 in the first period and < 0.890 in the second period). sTNFRII was not detected in EBC. Considering the direct effect between increasing some biomarkers in blood and EBC and particulate matter, it is concluded that air pollution causes this increasing.
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Affiliation(s)
- Morteza Seifi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Noushin Rastkari
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sadegh Hassanvand
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Kazem Naddafi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Shahrokh Nazmara
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Homa Kashani
- Department of Research Methodology and Data Analysis, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahad Zare
- Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Pourpak
- Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Yaser Hashemi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. .,Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
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15
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Połomska J, Bar K, Sozańska B. Exhaled Breath Condensate-A Non-Invasive Approach for Diagnostic Methods in Asthma. J Clin Med 2021; 10:jcm10122697. [PMID: 34207327 PMCID: PMC8235112 DOI: 10.3390/jcm10122697] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/04/2021] [Accepted: 06/15/2021] [Indexed: 01/08/2023] Open
Abstract
The pathophysiology of asthma has been intensively studied, but its underlying mechanisms such as airway inflammation, control of airway tone, and bronchial reactivity are still not completely explained. There is an urgent need to implement novel, non-invasive diagnostic tools that can help to investigate local airway inflammation and connect the molecular pathways with the broad spectrum of clinical manifestations of asthma. The new biomarkers of different asthma endotypes could be used to confirm diagnosis, predict asthma exacerbations, or evaluate treatment response. In this paper, we briefly describe the characteristics of exhaled breath condensate (EBC) that is considered to be an interesting source of biomarkers of lung disorders. We look at the composition of EBC, some aspects of the collection procedure, the proposed biomarkers for asthma, and its clinical implications. We also indicate the limitations of the method and potential strategies to standardize the procedure of EBC collection and analytical methods.
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16
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Papadopoulos NG, Miligkos M, Xepapadaki P. A Current Perspective of Allergic Asthma: From Mechanisms to Management. Handb Exp Pharmacol 2021; 268:69-93. [PMID: 34085124 DOI: 10.1007/164_2021_483] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Asthma is a result of heterogenous, complex gene-environment interactions with variable clinical phenotypes, inflammation, and remodeling. It affects more than 330 million of people worldwide throughout their educational and working lives, while exacerbations put a heavy cost/burden on productivity. Childhood asthma is characterized by a predominance of allergic sensitization and multimorbidity, while in adults polysensitization has been positively associated with asthma occurrence. Despite significant improvements in recent decades, asthma management remains challenging. Recently, a group of specialists suggested that the term "asthma" should be preferably used as a descriptive term for symptoms. Moreover, type 2 inflammation has emerged as a pivotal disease mechanism including overlapping endotypes of specific IgE production, while type 2-low asthma includes several disease endotypes. Optimal asthma control requires both appropriate pharmacological interventions, tailored to each patient, as well as trigger avoidance measures. Regular monitoring for maintenance of symptom control, preservation of lung function, and detection of treatment-related adverse effects are warranted. Allergen-specific immunotherapy and the advent of new targeted therapies for patients with difficult to control asthma offer diverse treatment options. The current review summarizes up-to-date knowledge on epidemiology, definitions, diagnosis, and current therapeutic strategies.
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Affiliation(s)
- Nikolaos G Papadopoulos
- Allergy Department, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece. .,Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK.
| | - Michael Miligkos
- First Department of Pediatrics, National and Kapodistrian University of Athens, Athens, Greece
| | - Paraskevi Xepapadaki
- Allergy Department, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
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17
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The Predictive Role of Biomarkers and Genetics in Childhood Asthma Exacerbations. Int J Mol Sci 2021; 22:ijms22094651. [PMID: 33925009 PMCID: PMC8124320 DOI: 10.3390/ijms22094651] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/24/2022] Open
Abstract
Asthma exacerbations are associated with significant childhood morbidity and mortality. Recurrent asthma attacks contribute to progressive loss of lung function and can sometimes be fatal or near-fatal, even in mild asthma. Exacerbation prevention becomes a primary target in the management of all asthmatic patients. Our work reviews current advances on exacerbation predictive factors, focusing on the role of non-invasive biomarkers and genetics in order to identify subjects at higher risk of asthma attacks. Easy-to-perform tests are necessary in children; therefore, interest has increased on samples like exhaled breath condensate, urine and saliva. The variability of biomarker levels suggests the use of seriate measurements and composite markers. Genetic predisposition to childhood asthma onset has been largely investigated. Recent studies highlighted the influence of single nucleotide polymorphisms even on exacerbation susceptibility, through involvement of both intrinsic mechanisms and gene-environment interaction. The role of molecular and genetic aspects in exacerbation prediction supports an individual-shaped approach, in which follow-up planning and therapy optimization take into account not only the severity degree, but also the risk of recurrent exacerbations. Further efforts should be made to improve and validate the application of biomarkers and genomics in clinical settings.
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18
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Di Cicco M, Peroni DG, Ragazzo V, Comberiati P. Application of exhaled nitric oxide (FeNO) in pediatric asthma. Curr Opin Allergy Clin Immunol 2021; 21:151-158. [PMID: 33620882 DOI: 10.1097/aci.0000000000000726] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW Fractional concentration of Nitric Oxide in the exhaled air (FeNO) is a moderately good biomarker of type-2 airway inflammation, and its measurement is feasible also in children. The available evidence is still not enough to support the routine use of FeNO to diagnose or manage asthma in every patient in clinical practice. However, its role in identifying asthma with eosinophilic inflammation is of particular interest in the management of severe asthma. RECENT FINDINGS In healthy subjects, FeNO levels increase with age and height, particularly in males, and are also influenced by ethnicity. FeNO measurement can support asthma diagnosis and help in predicting asthma development later in life in young children with recurrent wheezing. FeNO-guided asthma management is effective in reducing asthma exacerbations but may result in a higher daily dose of inhaled corticosteroids. FeNO can also be used as a marker to evaluate adherence to asthma treatment and predict response to different biologicals, especially Omalizumab and Dupilumab. SUMMARY This review outlines recent data on the application of FeNO in childhood-onset asthma diagnosis and management, as well as in phenotyping subjects with severe asthma who may benefit from monoclonal antibodies administration.
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Affiliation(s)
- Maria Di Cicco
- Pediatrics Unit, Pisa University Hospital
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa
| | - Diego Giampietro Peroni
- Pediatrics Unit, Pisa University Hospital
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa
| | - Vincenzo Ragazzo
- Pediatrics and Neonatology Division, Women's and Children's Health Department, Versilia Hospital, Lido di Camaiore, Italy
| | - Pasquale Comberiati
- Pediatrics Unit, Pisa University Hospital
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa
- Department of Clinical Immunology and Allergology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
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19
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Kunc P, Fabry J, Zatko T, Grendar M, Tatar M, Pecova R. Cough reflex sensitivity and fractional exhaled nitric oxide in children with asthma. Physiol Res 2021; 69:S455-S461. [PMID: 33471545 DOI: 10.33549/physiolres.934601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Individual studies have suggested the utility of fractional exhaled nitric oxide (FeNO) measurement in detecting cough-variant asthma and eosinophilic bronchitis in patients with chronic cough. The aim of this study was to clarify a correlation of cough reflex sensitivity and fractional exhaled nitric oxide in asthmatic children. 25 children with asthma and 15 controls were submitted to cough reflex sensitivity measurement - capsaicin aerosol in doubling concentrations (from 0.61 to 1250 micromol/l) was inhaled by a single breath method. Concentrations of capsaicin causing two (C2) and five coughs (C5) were reported. Fractional exhaled nitric oxide (FeNO) measurement was included. Asthmatic children' (11 boys and 14 girls, mean age 9+/-1 years) and control group (unconfirmed diagnosis of asthma) (6 boys and 9 girls, mean age 8+/-1 years) were included into the study. FeNO vs. C2 in asthma (Spearman´s rank correlation: -0.146, p=0.49); FENO vs. C5 in asthma (Spearman´s rank correlation: -0.777, p=0.71). We found that there is no correlation between cough reflex sensitivity and fractional exhaled nitric oxide either in children with asthma or in the control group.
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Affiliation(s)
- P Kunc
- Clinic of Paediatric Respiratory Diseases and Tuberculosis, Jessenius Faculty of Medicine in Martin, National Institute of Paediatric Tuberculosis and Respiratory Diseases, Dolny Smokovec, Slovak Republic. Department of Pathological Physiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic.
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20
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Reduced Exhaled Breath Condensate pH and Severity of Allergic Sensitization Predict School Age Asthma. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 9:1570-1577. [PMID: 33186764 DOI: 10.1016/j.jaip.2020.10.058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 10/21/2020] [Accepted: 10/27/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND We previously reported that deaerated breath condensate pH (dEBC pH) can identify preschool children with recurrent wheezing at high asthma risk. OBJECTIVE To assess the ability of preschool dEBC pH to predict asthma risk at school age. METHODS Children of the baseline cohort were recontacted for follow-up. Asthma diagnosis at school age was evaluated according to Global Initiative for Asthma recommendations in 135 children who at baseline had been classified into the following groups: (asymptomatic) atopic wheezers (n = 30), (asymptomatic) nonatopic wheezers (n = 57), allergic rhinitis only (n = 14), and healthy controls (n = 34). RESULTS All (100%) former atopic wheezers, 12 (21%) of nonatopic wheezers, 2 (14%) of allergic rhinitis group, and 1 (3%) of healthy controls had developed asthma at follow-up. Among all children with baseline wheezing, baseline dEBC pH predicted asthma at follow-up with an area under the receiver operating characteristic curve (AUC) of 0.72 (sensitivity, 0.67; specificity, 0.76; at pH 7.83). Combining pH and Capacity class (CAP) led to substantial gain in sensitivity (0.96) and negative predictive value (NPV, 0.94). Additional clinical information (Asthma Predictive Index, family atopy, family asthma, and inhaled corticosteroids) further increased the potential to predict asthma (AUC, 0.94) and raised sensitivity (0.98) and NPV (0.97) to nearly perfect values. CONCLUSION Our findings suggest (1) that dEBC pH combined with CAP class may serve as highly sensitive, noninvasive marker for the early detection of young asymptomatic preschool children with increased asthma risk, and (2) the need for additional biomarkers with high specificity to optimize early risk stratification in this clinically challenging scenario.
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21
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Rasool MF, Khalid R, Imran I, Majeed A, Saeed H, Alasmari F, Alanazi MM, Alqahtani F. Investigating the Role of Altered Systemic Albumin Concentration on the Disposition of Theophylline in Adult and Pediatric Patients with Asthma by Using the Physiologically Based Pharmacokinetic Approach. Drug Metab Dispos 2020; 48:570-579. [PMID: 32393652 DOI: 10.1124/dmd.120.090969] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/20/2020] [Indexed: 12/18/2022] Open
Abstract
Theophylline is commonly used for the treatment of asthma and has a low hepatic clearance. The changes in plasma albumin concentration occurring in asthma may affect the exposure of theophylline. The aim of the presented work was to predict theophylline pharmacokinetics (PK) after incorporating the changes in plasma albumin concentration occurring in patients with asthma into a physiologically based pharmacokinetic (PBPK) model to see whether these changes can affect the systemic theophylline concentrations in asthma. The PBPK model was developed following a systematic model building approach using Simcyp. The predictions were performed initially in healthy adults after intravenous and oral drug administration. Only when the developed adult PBPK model had adequately predicted theophylline PK in healthy adults, the changes in plasma albumin concentrations were incorporated into the model for predicting drug exposure in patients with asthma. After evaluation of the developed model in the adult population, it was scaled to children on physiologic basis. The model evaluation was performed by using visual predictive checks and comparison of ratio of observed and predicted (Robs/Pre) PK parameters along with their 2-fold error range. The developed PBPK model has effectively described theophylline PK in both healthy and diseased populations, as Robs/Pre for all the PK parameters were within the 2-fold error limit. The predictions in patients with asthma showed that there were no significant changes in PK parameters after incorporating the changes in serum albumin concentration. The mechanistic nature of the developed asthma-PBPK model can facilitate its extension to other drugs. SIGNIFICANCE STATEMENT: Exposure of a low hepatic clearance drug like theophylline may be susceptible to plasma albumin concentration changes that occur in asthma. These changes in systemic albumin concentrations can be incorporated into a physiologically based pharmacokinetic model to predict theophylline pharmacokinetics in adult and pediatric asthma populations. The presented work is focused on predicting theophylline absorption, distribution, metabolism, and elimination in adult and pediatric asthma populations after incorporating reported changes in serum albumin concentrations to see their impact on the systemic theophylline concentrations.
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Affiliation(s)
- Muhammad Fawad Rasool
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
| | - Ramsha Khalid
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
| | - Imran Imran
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
| | - Abdul Majeed
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
| | - Hamid Saeed
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
| | - Fawaz Alasmari
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
| | - Mohammed Mufadhe Alanazi
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
| | - Faleh Alqahtani
- Departments of Pharmacy Practice (M.F.R., R.K., A.M.) and Pharmacology (I.I.), Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan; Section of Pharmaceutics, University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan (H.S.); and Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia (F.F.A., M.M.A., F.A.)
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22
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Zani C, Ceretti E, Zerbini I, Viola GCV, Donato F, Gelatti U, Feretti D. Comet Test in Saliva Leukocytes of Pre-School Children Exposed to Air Pollution in North Italy: The Respira Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E3276. [PMID: 32397090 PMCID: PMC7246791 DOI: 10.3390/ijerph17093276] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/01/2020] [Accepted: 05/06/2020] [Indexed: 01/08/2023]
Abstract
Air pollution is a well-known problem for human health, especially for children living in highly polluted urban areas. This study aimed to assess the relationship between airborne pollutants concentration and biomarkers of DNA damage in the buccal mucosa cells of pre-school children. DNA damage was investigated with comet test in saliva leukocytes taken from sputum of 3- to 6-year-old children living in Brescia, Northern Italy, collected during two consecutive winter seasons (2012-2013). The daily levels of PM10, PM2.5, NO2, CO, SO2, benzene and O3 in urban air were collected for the whole period. A questionnaire filled in by the children's parents was used to evaluate indoor and outdoor exposure. DNA damage in saliva leukocytes was evaluated in 152 children and the means of tail intensity and visual score as DNA damage were 6.2 ± 4.3 and 182.1 ± 30.9, respectively. No demographic and indoor or outdoor exposure variable was associated with the two measures of DNA damage. No significant association between air pollution and DNA damage in children's buccal leukocytes was found. In this study, the comet assay does not appear to be a valuable biomarker to detect DNA damage in children exposed to high levels of air pollutants, such as PM10, PM2.5 and NO2.
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Affiliation(s)
| | | | | | | | | | | | - Donatella Feretti
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy; (C.Z.); (E.C.); (I.Z.); (G.C.V.V.); (F.D.); (U.G.)
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Abstract
PURPOSE OF REVIEW Childhood asthma is a heterogeneous disease and many children have uncontrolled disease. Therefore an individualized approach is needed to improve asthma outcomes in children. Precision medicine using clinical characteristics, biomarkers, and the rapidly involving field of genomics and pharmacogenomics aims to achieve asthma control and reduce future risks with less side-effects in individual children with asthma. RECENT FINDINGS It is not yet possible to select treatment options on clinical characteristics. Novel monoclonal antibodies are efficacious in patients with severe, eosinophilic asthma. Reduced lung function growth and early decline is a prevalent finding in children with persistent asthma. Pharmacogenetic studies have identified children at risk for cortisol suppression when using inhaled corticosteroids. SUMMARY Clinical characteristics and simple biomarkers like eosinophils, IgE, and the fraction of exhaled nitric oxide may be used in clinical practice for a basic precision medicine approach, deciding which children will have the best chance to respond to inhaled corticosteroids and to the biologicals omalizumab and mepolizumab.Further application of pharmacogenomics and breathomics needs additional studies before they can be applied as tools for precision medicine in individual children with asthma.
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Heffler E, Carpagnano GE, Favero E, Guida G, Maniscalco M, Motta A, Paoletti G, Rolla G, Baraldi E, Pezzella V, Piacentini G, Nardini S. Fractional Exhaled Nitric Oxide (FENO) in the management of asthma: a position paper of the Italian Respiratory Society (SIP/IRS) and Italian Society of Allergy, Asthma and Clinical Immunology (SIAAIC). Multidiscip Respir Med 2020; 15:36. [PMID: 32269772 PMCID: PMC7137762 DOI: 10.4081/mrm.2020.36] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/05/2020] [Indexed: 02/08/2023] Open
Abstract
Asthma prevalence in Italy is on the rise and is estimated to be over 6% of the general population. The diagnosis of asthma can be challenging and elusive, especially in children and the last two decades has brought evidences that asthma is not a single disease but consists of various phenotypes. Symptoms can be underestimated by the patient or underreported to the clinician and physical signs can be scanty. Usual objective measures, like spirometry, are necessary but sometimes not significant. Despite proper treatment, asthma can be a very severe condition (even leading to death), however new drugs have recently become available which can be very effective in its control. Since asthma is currently thought to be caused by inflammation, a direct measure of the latter can be of paramount importance. For this purpose, the measurement of Fractional Exhaled Nitric Oxide (FENO) has been used since the early years of the current century as a non-invasive, easy-to-assess tool useful for diagnosing and managing asthma. This SIP-IRS/SIAAIC Position Paper is a narrative review which summarizes the evidence behind the usefulness of FENO in the diagnosis, management and phenotypization of asthma.
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Affiliation(s)
- Enrico Heffler
- Personalized Medicine, Asthma and Allergy, Humanitas Clinical and Research Center IRCCS, Rozzano (MI).,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI)
| | - Giovanna Elisiana Carpagnano
- Department of Medical and Surgical Sciences, University of Foggia; Section of Respiratory Diseases, Hospital d'Avanzo, Foggia
| | - Elisabetta Favero
- Department of Medicine-DIMED, Immunological and Respiratory Rare Disease, Allergologic Clinic Ca' Foncello Hospital, Treviso
| | - Giuseppe Guida
- Allergy and Pneumology Unit, A.O. S. Croce e Carle, Cuneo
| | - Mauro Maniscalco
- Respiratory Rehabilitation Unit, ICS Maugeri, Institute of Telese Terme IRCCS
| | - Andrea Motta
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli (NA)
| | - Giovanni Paoletti
- Personalized Medicine, Asthma and Allergy, Humanitas Clinical and Research Center IRCCS, Rozzano (MI).,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI)
| | - Giovanni Rolla
- Allergy and Clinical Immunology, University of Turin and A.O. Mauriziano, Turin
| | - Eugenio Baraldi
- Department of Woman's and Child's Health, University Hospital of Padua
| | - Vincenza Pezzella
- Department of Woman, Child and of General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Naples
| | - Giorgio Piacentini
- Paediatric Section, Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona
| | - Stefano Nardini
- Italian Respiratory Society-Società Italiana di Pneumologia, Milan, Italy
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25
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Evolution of Airway Inflammation in Preschoolers with Asthma-Results of a Two-Year Longitudinal Study. J Clin Med 2020; 9:jcm9010187. [PMID: 31936693 PMCID: PMC7020050 DOI: 10.3390/jcm9010187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 12/12/2022] Open
Abstract
Fractional exhaled nitric oxide (FeNO) is a non-invasive marker for eosinophilic airway inflammation and has been used for monitoring asthma. Here, we assess the characteristics of FeNO from preschool to school age, in parallel with asthma activity. A total of 167 asthmatic children and 66 healthy, age-matched controls were included in the 2-year prospective PreDicta study evaluating wheeze/asthma persistence in preschool-aged children. Information on asthma/rhinitis activity, infections and atopy was recorded at baseline. Follow-up visits were performed at 6-month intervals, as well as upon exacerbation/cold and 4–6 weeks later in the asthmatic group. We obtained 539 FeNO measurements from asthmatics and 42 from controls. At baseline, FeNO values did not differ between the two groups (median: 3.0 ppb vs. 2.0 ppb, respectively). FeNO values at 6, 12, 18 and 24 months (4.0, CI: 0.0–8.6; 6.0, CI: 2.8–12.0; 8.0, CI: 4.0–14.0; 8.5, CI: 4.4–14.5 ppb, respectively) increased with age (correlation p ≤ 0.001) and atopy (p = 0.03). FeNO was non-significantly increased from baseline to the symptomatic visit, while it decreased after convalescence (p = 0.007). Markers of disease activity, such as wheezing episodes and days with asthma were associated with increased FeNO values during the study (p < 0.05 for all). Age, atopy and disease activity were found to be important FeNO determinants in preschool children. Longitudinal and individualized FeNO assessment may be valuable in monitoring asthmatic children with recurrent wheezing or mild asthma.
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26
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Parisi GF, Papale M, Tardino L, Nenna R, Midulla F, Leonardi S. Biomarkers in Pediatric Lung Diseases Including Cystic Fibrosis. CURRENT RESPIRATORY MEDICINE REVIEWS 2020. [DOI: 10.2174/1573398x15666190521112824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In recent decades, scientific studies of chemical processes involving metabolites have been
steadily increasing, indicating that we are well into the metabolomics era. This has resulted in
numerous studies that explore the field of biomarkers. One of the medical areas most concerned with
these innovations is certainly that of childhood respiratory disorders, including asthma and cystic
fibrosis. This current study is a review of the literature about biomarkers used or studied in the field
of pediatric pulmonology, including asthma and cystic fibrosis.
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Affiliation(s)
- Giuseppe Fabio Parisi
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Maria Papale
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Lucia Tardino
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Raffaella Nenna
- Department of Pediatrics, Sapienza University of Rome, Rome, Italy
| | - Fabio Midulla
- Department of Pediatrics, Sapienza University of Rome, Rome, Italy
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Licari A, Castagnoli R, Manca E, Votto M, Michev A, Marseglia GL. Towards Precision Medicine in Pediatric Severe Asthma: An Update on Current and Emerging Biomarkers. CURRENT RESPIRATORY MEDICINE REVIEWS 2020. [DOI: 10.2174/1573398x15666190423150227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Pediatric severe asthma is actually considered a rare disease with a heterogeneous nature.
Recent cohort studies focusing on children with severe asthma identified different clinical
presentations (phenotypes) and underlying pathophysiological mechanisms (endotypes). Phenotyping
and endotyping asthma represent the current approach to patients with severe asthma and consist in
characterizing objectively measurable and non-invasive indicators (biomarkers) capable of orienting
diagnosis, management and personalized treatment, as advocated by the Precision Medicine
approach. The aim of this review is to provide a practical overview of current and emerging
biomarkers in pediatric severe asthma.
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Affiliation(s)
- Amelia Licari
- Department of Pediatrics, University of Pavia, Pavia, Italy
| | | | - Enrica Manca
- Department of Pediatrics, “Casa del Sollievo e della Sofferenza” Scientific Institute, University of Foggia, Foggia, Italy
| | - Martina Votto
- Department of Pediatrics, University of Pavia, Pavia, Italy
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Ferraro VA, Zanconato S, Baraldi E, Carraro S. Nitric Oxide and Biological Mediators in Pediatric Chronic Rhinosinusitis and Asthma. J Clin Med 2019; 8:jcm8111783. [PMID: 31731479 PMCID: PMC6912805 DOI: 10.3390/jcm8111783] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND In the context of the so-called unified airway theory, chronic rhinosinusitis (CRS) and asthma may coexist. The inflammation underlying these conditions can be studied through the aid of biomarkers. Main body: We described the main biological mediators that have been studied in pediatric CRS and asthma, and, according to the available literature, we reported their potential role in the diagnosis and management of these conditions. As for CRS, we discussed the studies that investigated nasal nitric oxide (nNO), pendrin, and periostin. As for asthma, we discussed the role of fractional exhaled nitric oxide (feNO), the role of periostin, and that of biological mediators measured in exhaled breath condensate (EBC) and exhaled air (volatile organic compounds, VOCs). CONCLUSION Among non-invasive biomarkers, nNO seems the most informative in CRS and feNO in asthma. Other biological mediators seem promising, but further studies are needed before they can be applied in clinical practice.
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29
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Keßler A, Kragl U, Glass Ä, Schmidt S, Fischer DC, Ballmann M. Exhaled nitric oxide can't replace the methacholine challenge in suspected pediatric asthma. Respir Med 2019; 157:21-25. [PMID: 31476569 DOI: 10.1016/j.rmed.2019.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND In adults, measurement of FENO has been recently suggested as a substitute for the methacholine challenge test (MCT) for diagnosis of asthma. This study aimed to evaluate whether FeNO is a substitute for MCH also in children with suspicious asthma. METHODS During a single visit steroid naive children (5-17 years) with suspicious asthma underwent skin prick test (SPT), FENO measurement and spirometry prior and during MCT (one concentration procedure). Results of the SPT (atopy/non-atopy) and MCT (asthma/non-asthma) were used for categorization. ROC analysis in atopy non-atopy subgroups yielded sensitivity, specificity, positive and negative predictive value (PPV and NPV) for FENO. RESULTS The SPT revealed atopy in 134 out of 222 children (age 9.7 ± 3.2 years) investigated and asthma was diagnosed in 114 (77/37 atopy/non-atopy) patients. FENO values in patients with atopic asthma were significantly higher compared to those with either non-atopic asthma or atopia without asthma (18 ppb (5-89) vs 7 ppb (5-36); p < 0.001; 18 ppb (5-89) vs 11 ppb (5-98); p < 0.05). Sensitivity and specificity of FENO for diagnosing atopic asthma (FENO≥15.5 ppb; AUC = 0.635, p < 0.01) were 61.1% and 64.9% and non-atopic asthma (FENO≥ 6.5 ppb; AUC = 0.445, p = 0.382) 54.1% and 39.2%, respectively. The PPV/NPV for FENO were 0.70/0.55 in atopy and 0.39/0.54 in non-atopy patients, respectively. CONCLUSION In children, FENO is not appropriate to substitute for the MCT. However, in patients with a negative SPT a FENO in the normal range makes the presence of atopic asthma unlikely.
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Affiliation(s)
- Anja Keßler
- Department of Pediatrics, Rostock University Medical Hospital, Rostock, Germany; Private Practice for Pediatric Pulmology and Allergology, Neubrandenburg, Germany
| | - Uwe Kragl
- Private Practice for Pediatric Pulmology and Allergology, Neubrandenburg, Germany
| | - Änne Glass
- Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Hospital, Rostock, Germany
| | - Sebastian Schmidt
- Department of Pediatrics, Greifswald University Medical Hospital, Greifswald, Germany
| | - Dagmar-C Fischer
- Department of Pediatrics, Rostock University Medical Hospital, Rostock, Germany.
| | - Manfred Ballmann
- Department of Pediatrics, Rostock University Medical Hospital, Rostock, Germany
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30
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Xiao HL, Chen ZH, Zhang DW, Xie XH. [Predictive significance of exhaled breath temperature for airway inflammation changes in children with asthma]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2019; 21:806-811. [PMID: 31416507 PMCID: PMC7389892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 04/28/2019] [Indexed: 08/01/2024]
Abstract
OBJECTIVE To explore the predictive significance of exhaled breath temperature (EBT) for airway inflammation changes in children with asthma. METHODS A total of 60 children with asthma who met the inclusion criteria at the first visit were chosen as the asthma group, and 60 healthy children were selected as the control group. The EBT level was measured by the latest third-generation product (X-halo). The Childhood Asthma Control Test (C-ACT) score was recorded. EBT level and C-ACT score were compared between the asthma and control groups. At the subsequent visit one month later, the children were divided into well-controlled, partially-controlled, and uncontrolled groups according to their C-ACT scores. The EBT level and the FeNO level of the three groups were measured. EBT level and C-ACT score were compared among the three groups. The correlation between EBT and FeNO was analyzed. The data of initial diagnosis were reviewed, the EBT level and C-ACT score at the first visit were compared among the three groups, and the differences in EBT level and C-ACT score among the three groups at the second and first visits were evaluated. RESULTS At the first visit, the asthma group had a significantly higher EBT and a significantly lower C-ACT score compared with the control group (P<0.05). At the time of the subsequent visit, there was a significant difference in EBT level between the three groups, i.e., uncontrolled group > partially-controlled group > well-controlled group (P<0.05), and there was also a significant difference in C-ACT score between the three groups, i.e., well-controlled group > partially-controlled group > uncontrolled group (P<0.05). There were no significant differences in EBT level and C-ACT score at the first visit between the three groups. From the first visit to the subsequent visit, EBT level was significantly decreased in the well-controlled group (P<0.05), but significantly increased in both partially-controlled group uncontrolled groups (P<0.05); C-ACT score was significantly increased in the well-controlled and partially-controlled groups (P<0.05), but significantly decreased in the uncontrolled group (P<0.05). EBT and FeNO levels at the subsequent visit were positively correlated with each other in the uncontrolled group (P<0.05). CONCLUSIONS EBT has predictive significance for the changes in airway inflammation in children with asthma.
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Affiliation(s)
- Hou-Lan Xiao
- Department of Pediatrics, Foshan Gaoming District People's Hospital Affiliated to Guangdong Medical University, Foshan, Guangdong 528500, China.
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Xiao HL, Chen ZH, Zhang DW, Xie XH. [Predictive significance of exhaled breath temperature for airway inflammation changes in children with asthma]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2019; 21:806-811. [PMID: 31416507 PMCID: PMC7389892 DOI: 10.7499/j.issn.1008-8830.2019.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 04/28/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To explore the predictive significance of exhaled breath temperature (EBT) for airway inflammation changes in children with asthma. METHODS A total of 60 children with asthma who met the inclusion criteria at the first visit were chosen as the asthma group, and 60 healthy children were selected as the control group. The EBT level was measured by the latest third-generation product (X-halo). The Childhood Asthma Control Test (C-ACT) score was recorded. EBT level and C-ACT score were compared between the asthma and control groups. At the subsequent visit one month later, the children were divided into well-controlled, partially-controlled, and uncontrolled groups according to their C-ACT scores. The EBT level and the FeNO level of the three groups were measured. EBT level and C-ACT score were compared among the three groups. The correlation between EBT and FeNO was analyzed. The data of initial diagnosis were reviewed, the EBT level and C-ACT score at the first visit were compared among the three groups, and the differences in EBT level and C-ACT score among the three groups at the second and first visits were evaluated. RESULTS At the first visit, the asthma group had a significantly higher EBT and a significantly lower C-ACT score compared with the control group (P<0.05). At the time of the subsequent visit, there was a significant difference in EBT level between the three groups, i.e., uncontrolled group > partially-controlled group > well-controlled group (P<0.05), and there was also a significant difference in C-ACT score between the three groups, i.e., well-controlled group > partially-controlled group > uncontrolled group (P<0.05). There were no significant differences in EBT level and C-ACT score at the first visit between the three groups. From the first visit to the subsequent visit, EBT level was significantly decreased in the well-controlled group (P<0.05), but significantly increased in both partially-controlled group uncontrolled groups (P<0.05); C-ACT score was significantly increased in the well-controlled and partially-controlled groups (P<0.05), but significantly decreased in the uncontrolled group (P<0.05). EBT and FeNO levels at the subsequent visit were positively correlated with each other in the uncontrolled group (P<0.05). CONCLUSIONS EBT has predictive significance for the changes in airway inflammation in children with asthma.
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Affiliation(s)
- Hou-Lan Xiao
- Department of Pediatrics, Foshan Gaoming District People's Hospital Affiliated to Guangdong Medical University, Foshan, Guangdong 528500, China.
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Krauss E, Froehler M, Degen M, Mahavadi P, Dartsch RC, Korfei M, Ruppert C, Seeger W, Guenther A. Exhalative Breath Markers Do Not Offer for Diagnosis of Interstitial Lung Diseases: Data from the European IPF Registry (eurIPFreg) and Biobank. J Clin Med 2019; 8:jcm8050643. [PMID: 31075945 PMCID: PMC6572439 DOI: 10.3390/jcm8050643] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/26/2019] [Accepted: 05/04/2019] [Indexed: 02/06/2023] Open
Abstract
Background: New biomarkers are urgently needed to facilitate diagnosis in Interstitial Lung Diseases (ILD), thus reducing the need for invasive procedures, and to enable tailoring and monitoring of medical treatment. Methods: In this study we investigated if patients with idiopathic pulmonary fibrosis (IPF; n = 21), non-IPF ILDs (n = 57) and other lung diseases (chronic obstructive pulmonary disease (COPD) n = 24, lung cancer (LC) n = 16) as well as healthy subjects (n = 20) show relevant differences in exhaled NO (FeNO; Niox MINO), or in eicosanoid (PGE2, 8-isoprostane; enzyme-linked immunosorbent assay (ELISA)) levels as measured in exhaled breath condensates (EBC) and bronchoalveolar lavage fluids (BALF). Results: There was no significant difference in FeNO values between IPF, non-IPF ILDs and healthy subjects, although some individual patients showed highly elevated FeNO. On the basis of the FeNO signal, it was neither possible to differentiate between the kind of disease nor to detect exacerbations. In addition, there was no correlation between FeNO values and lung function. The investigation of the eicosanoids in EBCs was challenging (PGE2) or unreliable (8-isoprostane), but worked out well in BALF. A significant increase of free 8-isoprostane was observed in BALF, but not in EBCs, of patients with IPF, hypersensitivity pneumonitis (HP) and sarcoidosis, possibly indicating severity of oxidative stress. Conclusions: FeNO-measurements are not of diagnostic benefit in different ILDs including IPF. The same holds true for PGE2 and 8-isoprostane in EBC by ELISA.
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Affiliation(s)
- Ekaterina Krauss
- European IPF Registry & Biobank (eurIPFreg/bank), 35394 Giessen, Germany.
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), 35394 Giessen, Germany.
| | - Maike Froehler
- European IPF Registry & Biobank (eurIPFreg/bank), 35394 Giessen, Germany.
| | - Maria Degen
- Agaplesion Lung Clinic, 35753 Greifenstein, Germany.
| | - Poornima Mahavadi
- European IPF Registry & Biobank (eurIPFreg/bank), 35394 Giessen, Germany.
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), 35394 Giessen, Germany.
| | - Ruth C Dartsch
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), 35394 Giessen, Germany.
- Agaplesion Lung Clinic, 35753 Greifenstein, Germany.
| | - Martina Korfei
- European IPF Registry & Biobank (eurIPFreg/bank), 35394 Giessen, Germany.
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), 35394 Giessen, Germany.
| | - Clemens Ruppert
- European IPF Registry & Biobank (eurIPFreg/bank), 35394 Giessen, Germany.
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), 35394 Giessen, Germany.
| | - Werner Seeger
- European IPF Registry & Biobank (eurIPFreg/bank), 35394 Giessen, Germany.
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), 35394 Giessen, Germany.
- Cardio-Pulmonary Institute (CPI), EXC 2026, Project ID: 390649896, Justus-Liebig University Giessen, 35394 Giessen, Germany.
| | - Andreas Guenther
- European IPF Registry & Biobank (eurIPFreg/bank), 35394 Giessen, Germany.
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), 35394 Giessen, Germany.
- Agaplesion Lung Clinic, 35753 Greifenstein, Germany.
- Cardio-Pulmonary Institute (CPI), EXC 2026, Project ID: 390649896, Justus-Liebig University Giessen, 35394 Giessen, Germany.
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Course CW, Kotecha S, Kotecha SJ. Fractional exhaled nitric oxide in preterm-born subjects: A systematic review and meta-analysis. Pediatr Pulmonol 2019; 54:595-601. [PMID: 30694610 PMCID: PMC6519366 DOI: 10.1002/ppul.24270] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 01/04/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Decreased lung function is common in preterm-born survivors. Increased fractional exhaled nitric oxide (FeNO) appears to be a reliable test for eosinophillic airway inflammation especially in asthma. We, systematically, reviewed the literature to compare FeNO levels in preterm-born children and adults who did or did not have chronic lung disease of prematurity (CLD) in infancy with term-born controls. METHODS We searched eight databases up to February 2018. Studies comparing FeNO levels in preterm-born subjects (<37 weeks' gestation) in childhood and adulthood with and without (CLD) with term-born subjects were identified and extracted by two reviewers. Data were analysed using Review Manager v5.3. RESULTS From 6042 article titles, 183 full articles were screened for inclusion. Nineteen studies met the inclusion criteria. Seventeen studies compared FeNO levels in preterm- and term-born children and adults; 11 studies (preterm n = 640 and term n = 4005) were included in a meta-analysis. The mean FeNO concentration difference between the preterm-born and term-born group was -0.74 (95% CI -1.88 to 0.41) ppb. For the six studies reporting data on CLD (preterm n = 204 and term n = 211) the mean difference for FeNO levels was -2.82 (95% CI -5.87 to 0.22) ppb between the preterm-born CLD and term-born groups. CONCLUSIONS Our data suggest that preterm born children with and without CLD have similar FeNO levels to term-born children suggesting an alternative mechanism to eosinophilic inflammation for symptoms of wheezing and airway obstruction observed in preterm-born subjects.
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Affiliation(s)
- Christopher W Course
- Welsh Regional Neonatal Intensive Care Unit, University Hospital of Wales, Cardiff, UK
| | - Sailesh Kotecha
- Department of Child Health, School of Medicine, Cardiff University, Cardiff, UK
| | - Sarah J Kotecha
- Department of Child Health, School of Medicine, Cardiff University, Cardiff, UK
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